The galvanized steel strip base material can be divided into cold-rolled steel and hot-rolled steel. The thicness of galvanized strip with cold rolled steel is 0.12-2mm, while the thickness of galvanized strip with hot-rolled steel material is 2-5mm. The steel grade for cold rolled galvanized steel strips are G550, DX51D+Z, S350,S550, Q195, Q235, SGCC. The strip is generally slit from galvanized steel coils which width from 600-1500mm, so that any strip width is available.
Galvanized Strip Production Process
1. Pickling and decontamination of the entire roll of strip steel to achieve a bright and clean surface.
2. Hot-dip galvanizing: After pickling, it is cleaned in the tank of ammonium chloride or zinc chloride aqueous solution or mixed aqueous solution of ammonium chloride and zinc chloride, and then sent to the continuous annealing furnace and then into the galvanizing tank for galvanizing.
3. The strip is galvanized and put into storage, and the galvanized layer can be customized according to customer needs.
4. If there is a requirement for the width, the galvanized coils can be processed into strips. Generally, the thickness of the toxicity file is 0.12-2mm.
Galvanized steel strip specification can be customized according to customer’s requirement.
| Thickness | 0.12mm-3mm ; 11gauge-36gauge |
| Width | 50mm-500mm; |
| Standard | JIS G3302, EN10142, EN 10143, GB/T2618-1998, ASTM653, AS NZS 1397 |
| Material grade | SGCC, DX51D, G550, SPGC, ect. |
| Zinc coating | Z30-Z275g/㎡ |
| Surface treatment | Passivation or Chromated, Skin Pass,Oil or Unoiled,or Antifinger print |
| Spangle | Small/ Regular/ Big/ Non-Spangle |
| Coil weight | 0.5-1 tons, one package is usually 3-5tons |
| Coil inner diameter | 508/610mm |
| Hardness | Soft hard (HRB60),medium hard (HRB60-85), full hard (HRB85-95) |
Main uses of galvanized strip
1. General civil use
Processing household appliances, such as sinks, etc., to reinforce door panels, etc., or to strengthen kitchen utensils, etc.
2. Construction industry
Light steel joists, roofs, ceilings, walls, water retaining boards, rain racks, rolling shutter doors, warehouse interior and exterior panels, thermal insulation pipe shells, etc.
3. Household appliances
Reinforcement and protection in household appliances such as refrigerators, washing machines, showers, and vacuum cleaners
4. Automotive industry
Cars, trucks, trailers, luggage carts, refrigerated car parts, garage doors, wipers, fenders, fuel tanks, water tanks, etc.
5. Industrial industry
As the base material of stamping materials, it is used in bicycles, digital products, armored cables, etc.
6. Other aspects
Equipment enclosures, electrical cabinets, instrument panels, office furniture, etc.
